/**
 * @author wangj881
 * @date 2025-01-09 14:28
 */
public class L206_3 {


    class Solution {
        public ListNode reverseList(ListNode head) {
            ListNode pre = null;
            ListNode cur = head;
            while (cur != null) {
                ListNode next = cur.next;
                cur.next = pre;
                pre = cur;
                cur = next;
            }
            return pre;
        }
    }
}
